A novel, green and rapid sonochemical research to preparation of the biphenyls was carried out through the coupling reaction between various aryl halides and phenylboronic acid by using bis(propyl malononitrile) Ni (0) complex (NiFe₂O₄@SiO₂-BPMN-Ni) as an efficient nano catalyst. The catalyst can be recycled via an external magnet and reused several times without considerable loss of its catalytic activity. Compare to the previous works, this procedure has advantages such as easy workup, high yields of products, environmentally benign and short reaction times. The novel nickel catalyst prepared and characterized by FT-IR, XRD, SEM, EDX, TGA and VSM techniques.

通过使用双（丙基丙二腈）Ni（0）络合物（NiFe ₂ O ₄ @SiO ₂ -BPMN- ），通过各种芳基卤化物与苯基硼酸之间的偶联反应，进行了新颖，绿色，快速的声化学制备联苯的研究。Ni）作为有效的纳米催化剂。催化剂可以通过外部磁体进行再循环，并重复使用几次，而不会显着降低其催化活性。与以前的工作相比，该方法具有诸如后处理容易，产品收率高，对环境无害和反应时间短的优点。通过FT-IR，XRD，SEM，EDX，TGA和VSM技术制备并表征了新型镍催化剂。